Cut the chicken breast into bite-sized pieces.
Dice the onion, potato, and carrot.
Heat olive oil in a pan and stir-fry the chicken breast.
When the chicken is cooked, add the onion, potato, and carrot, and stir-fry.
Once the vegetables are cooked, add water and bring to a boil.
Add the curry powder and stir well.
Simmer over medium-low heat until the curry thickens.
Serve the finished chicken breast curry on a plate.